
const express = require('express');

const app = express();

const middleware1 = (req,res,next) => {
    console.log('1');
    next()
    console.log('1-1');
}
const middleware2 = (req,res,next) => {
    console.log('2');
    next()
    console.log('2-2');
}
const middleware3 = (req,res,next) => {
    console.log('3');
    next()
    console.log('3-3');
}
app.use(middleware1);
app.use(middleware2);
app.use(middleware3);

app.get('/home', (req, res) => {
  
   res.send('你好我是home33333')
})

// 分配端口
app.listen(3000, () => {
    console.log('项目在3000端口启动了');
})

